Sweetspot golf club

ABSTRACT

A sweetspot golf club assembly is designed to help a golfer to drive a golf ball further and to its target more accurately , because of its sweet spot location on the face of the club head and its shaft location at the club head. The sweetspot is where the center-line of the head will pierce the face of the head. The club shaft is attached to the head so its center-line will intersect the center-line of the club head . The center-line of the club head is established by constructing a line from the center of gravity of the head to a perpendicular line that is on the flat face of the head , and is parallel to the ground line, and at the same height to the center of gravity of the head. This club head includes a high lighted straight line on top of a fore and aft rib that is above , and parallel , and on center with the center-line of the club head . This acts as a sight line to assist the golfer to align the club head to the center of the golf ball , and align the sight line with a imaginary line going from the center of the golf ball to its target. The above improvements will assist the golfer to drive the golf ball further and with more accuracy.

DESCRIPTION OF THE PRIOR ART

A golf club assembly that has a center-line of the grip and shaft offcenter to the sweetspot and centerline of the club head. When a golferdrives a golf ball and the club head makes contact with the golf ball,this offset (1.5 to 2.0 inches) produces a torque about the center-lineof the grip and shaft. This torque is great enough to cause the clubhead face to rotate about the center line of to grip and shaft, causingthe golf ball trajectory to be right or left of its target. The same istrue when a right or left hand golfer produces a divot. When the centerof gravity of the divot is off center to the center-line of the grip andshaft, it also produces a torque about the center line of the grip andshaft. The summation of both torques are great enough to cause the clubhead face to rotate about the center line of the grip and shaft, whichcauses the golf ball trajectory to be right or left of its target,depending on a right or left hand golfer. This club head has no highlighted line on top of a fore and aft rib to assist the golfer to alignthe club head for a accurate direction to its target.

BRIEF SUMMARY OF THE DISCLOSURE

In the presently preferred embodiment of the invention of a golf clubassembly consisting of a golf shaft and grip, and club head. Thecenter-line of the grip and the golf shaft is attached to the club headso that it will intersect with the center-line of the club head. Thecenter-line of the club head is established by constructing a line fromthe center of gravity of the club head to a perpendicular line that ison the flat face of the head, and is parallel to the ground line, and atthe same height to the ground line as the center of gravity of the head.When the face of the club head is a arched surface, then a chord isconstructed so this line has both ends being equal distance to thecenter of gravity, and is perpendicular to a line from the center ofgravity to the chord of the head face, and the chord is at the sameheight as the center of gravity, and parallel to the ground line. Thecenter-line of the shaft must intersect the center-line of the head. Thelie is of any angle to the ground line. The center-line of the shaft isof any angle to the center-line of the head in the top and end view. Theloft is of any angle to the ground line. When a golfer drives the golfball with his club, the moment of inertia is acting through the centerof gravity and contacting the golf ball at the sweet spot (a spot wherethe center-line of the head will pierce the face of the head) that hasno torque acting about the center line of the grip and shaft. In view ofthe prior art, it is an object of the present invention to provide agolfer a means to make a visible adjustment to a golf club assembly soas to align the head for a more accurate golf ball direction to atarget, as on the fairway or a hole of a green on a golf course ordriving range. A high lighted straight line at the top of a fore and aftrib located at the top of the head and on center and parallel with thecenter-line of the head acts as a sight line to assist the golfer toalign the head with the center of the golf ball, and align it with aimaginary line that is going from the center of the golf to its target.After this adjustment, the golfer will drive the ball further and have amore accurate trajectory to its target.

All the design specifications listed above are for any size, shape ormaterial of any golf club.

BRIEF DESCRIPTION OF DRAWING

The advantage of this sweetspot golf club assembly means the golf ballcan be driven further, and has a more accurate trajectory to a target orhole in the green. The following is a detail discussion and theaccompanying drawings in which:

FIG. 1 is an elevation view of a golfer using a sweetspot golf clubassembly.

FIG. 2 is a top view of a golf club assembly of the present inventionwith part of the shaft broken away.

FIG. 3 is a front view of this invention with part of the shaft brokenaway.

FIG. 4 is a end view of this invention with part of the shaft brokenaway.

DETAIL DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENT

Referring now to the drawings where in the presently preferredembodiment of this invention is illustrated. FIG. 1 discloses asweetspot golf club assembly 10 being used by a golfer in a swing mode.FIG. 2, 3, 4 contains a golf club head 12, and shaft and grip assembly11. The center-line of the grip and golf shaft 11 is attached to theclub head 12 so that it will intersect with the center-line 16 of theclub head 12. The center-line 16 of the head 12 is a line 16 drawn fromthe center of gravity 15 of the head 12, and perpendicular to a line 21on the flat face 8 of the head 12, and is parallel to the ground line22, and at the same height from the ground line 22 to the center ofgravity 15 of the head 12. The sweetspot 14 is a spot where thecenter-line 16 of the head 12 will pierce the surface 18 at point 14.The shaft 11 is attached to the head 12 and the center-line 19 of theshaft 11 intersects with the center line 16 of the head 12 at point 17.The lie angle 24 is of any degrees. The loft angle 25 is of any degrees.The center-line 19 of the shaft 11 to line 21 in the end view FIG. 4 hasa angle 20 of any degrees. When the face 18 of the head 12 is an archedsurface 18, then a chord 21 is constructed so this line 21 has both endsbeing equal distance to the center of gravity 15, and is perpendicularto a line 16, from the center of gravity 15 to the chord 21 of the headface 18, and is at the same height of the center of gravity 15 of thehead 12, and parallel to the ground line 22, A highlighted straight line27 is on the top of a fore and aft rib 13 and is located on the top ofthe head 12 and is parallel and on center with the centerline 16 of thehead 12 in the top view of FIG. 2 and has a angle 23 of 90 degrees(plusor minus 5 degrees) to line 21. The golf club head 12 shown is for aright hand golf club assembly 10 and a left hand golf club assembly 10is symetrically opposite.

OPERATION

When a golfer addresses a golf ball, before hitting it with his golfclub, he has to adjust the head to its best geometric position with theball, so the direction to its target is more accurate. This is done byaligning the golf club head sight line (the high-lighted straight lineon the top surface of the fore and aft rib on top of the head) to thefore and aft center-line of the golf ball. Next, he has to align thesight line so as to coincide with a imaginary line that goes from thecenter of the ball to its a target. Next, he should regrip the clubshaft after this adjustment and keep the desired club head position thatwas set for the club head intacted. He is now ready to drive the ball toits target. When the sweet spot of the club head contacts the ball, itwill drive the ball further and with more accuracy to its target,because it has no moment of inertia creating a torque about thecenter-line of the shaft.

1. A golf club shaft assembly having the center line of the grip andshaft intersect the center line of the head for its geometric location.The center-line of the head being a line drawn from the center ofgravity of the head to a perpendicular line on the face of the head, andis parallel to the ground line, and has the same height as the center ofgravity.
 2. A golf club head sweet spot is located at a spot where thecenter line of the club head will pierce the surface of the face of theclub head. The center-line of the head being a line drawn from thecenter of gravity of the head to a perpendicular line on the face of thehead, and is parallel to the ground line, and has the same height as thecenter of gravity.
 3. A golf club head having a high lighted straightline at the top surface of a fore and aft rib, and being above, andparallel, and on center with the center-line of the head. This is usedas a sight line for aligning the club head to the center of the golfball and the sight line should coincide with a imaginary line, whichextends from the center of the golf ball to its target. The center-lineof the head being a line drawn from the center of gravity of the head toa perpendicular line on the face of the head, and is parallel to theground line, and has the same height as the center of gravity.